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wdc(4) [netbsd man page]

WDC(4)							   BSD Kernel Interfaces Manual 						    WDC(4)

NAME
wdc -- WD100x compatible hard disk controllers driver SYNOPSIS
ISA and ISA plug'n'play controllers wdc0 at isa? port 0x1f0 irq 14 flags 0x00 wdc1 at isa? port 0x170 irq 15 flags 0x00 wdc* at isapnp? Open Firmware ISA wdc* at ofisa? PCMCIA controllers wdc* at pcmcia? function ? arm32 wdc0 at pioc? offset 0x01f0 irq 9 atari wdc0 at mainbus0 amiga wdc0 at mainbus0 DESCRIPTION
The wdc driver provides the interface with the hardware for the ata(4) driver. This driver supports IDE and EIDE controllers, as well as MFM, RLL and ESDI on the ISA bus. PCI IDE controllers in legacy mode are also supported, but the pciide(4) driver may provide more functionality. On the ISA front-end, the following flags are supported: 0x0001 Enables 32-bit I/O negotiation in the driver. This is known to cause problems with some motherboards. 0x0002 Don't probe for the second drive. 0x0004 Set WDC_CAPABILITY_ATA_NOSTREAM flag. 0x0008 Set WDC_CAPABILITY_ATAPI_NOSTREAM flag. SEE ALSO
ata(4), atapi(4), intro(4), isa(4), isapnp(4), mainbus(4), ofisa(4), pciide(4), pcmcia(4), scsi(4), wd(4) BSD
October 8, 2003 BSD

Check Out this Related Man Page

PDCIDE(4)						   BSD Kernel Interfaces Manual 						 PDCIDE(4)

NAME
pdcide -- Promise IDE disk controllers driver SYNOPSIS
pdcide* at pci? dev ? function ? flags 0x0000 DESCRIPTION
The pdcide driver supports the Promise Ultra33, Ultra66, Ultra100, Ultra100TX2, Ultra100TX2v2, Ultra133, Ultra133TX2, Ultra133TX2v2, Fast- trak133 and Serial ATA/150 IDE controllers, and provides the interface with the hardware for the ata(4) driver. The 0x0002 flag forces the pdcide driver to disable DMA on chipsets for which DMA would normally be enabled. This can be used as a debugging aid, or to work around problems where the IDE controller is wired up to the system incorrectly. SEE ALSO
ata(4), atapi(4), intro(4), pci(4), pciide(4), wd(4), wdc(4) BUGS
The timings used for the PIO and DMA modes for controllers listed above are for a PCI bus running at 30 or 33 MHz. This driver may not work properly on overclocked systems. The pdcide driver does NOT function correctly on NetBSD/sparc64. BSD
December 23, 2003 BSD
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